Sauber-Mercedes C 9 Group C racing car, Le Mans 24-hour race, 1989. Night-time pit stop of the later winning vehicle with starting number 63. Jochen Mass is ready for the change of drivers. Photo from 1989.

Sauber-Mercedes C 9 Group C racing car, Le Mans 24-hour race, 1989. Night-time pit stop of the later winning vehicle with starting number 63. Jochen Mass is ready for the change of drivers. Photo from 1989.